Bohr's method measures the volume of the lung which does not eliminate CO₂. Because this is a functional measurement, the volume is called the physiologic dead space.

Isn't it horrible, mamma! One fly produces fifty-two billions of descendants in 60 days in June and July, and they go and crawl over sick people and wade through pus, and sputa, and foul matter exuding from sores, and gaum themselves with every kind of disease-germ, then they go to everybody's dinner-table and wipe themselves off on the butter […]

To overtranslate: 'as far as my having slaves is concerned, I have – none'.

And in our times, in Philadelphia, there have been specimens of violent shruggings of the shoulders, and brachial twitches, and prodigious wry faces, and thumpings on the pews.